Abstract: Petrochemical projects present numerous safety risks due to diverse building configurations, complex geological conditions and significant construction challenges. Taking the second phase of Zhoushan Petrochemical Project as the research object, this paper explores the application of grid-based management: dividing management objectives into grid units, establishing dedicated grid service teams, building a supporting safety management information system with information technology and constructing a new model of refined management with comprehensive vertical and horizontal coverage. After analyzing its operational mechanism and advantages, it is concluded that this model can provide a systematic management method for projects, effectively improving the response speed and handling efficiency of risks in petrochemical industry and meeting the industry safety management requirements.

Key words: grid-based management, petrochemical industry, engineering construction, safety management